S.N. |
Parameters |
Unit |
Test Methods |
1 |
pH |
- |
pH meter |
2 |
Dissolved Oxygen (DO) |
mg/L |
Winkler method |
3 |
Biochemical Oxygen Demand (BOD) |
mg/L |
5 days incubation at 20° C and titration of initial and final DO. |
4 |
Chemical Oxygen Demand |
mg/L |
Open Reflux Method |
5 |
Conductivity |
ms/cm |
Conductivity meter |
6 |
Alkalinity |
mg/L |
Titration |
7 |
Total dissolved Solids |
mg/L |
Digital conductivity meter (LT-51) |
8 |
Chloride |
mg/L |
Argentometric titration |
9 |
Orthophosphate (P043- — P) |
mg/L |
Ammonium molybdate ascorbic acid reduction method |
10 |
Nitrate -Nitrogen (NO3 — N) |
mg/L |
Spectrophotometric method |
11 |
Ammonia-Nitrogen (NH3 — N) |
mg/L |
Spectrophotometric (Phenate method) |
12 |
Total Hardness as CaCO3 |
mg/L |
EDTA titration |
13 |
Fluoride |
mg/L |
Colorimetric Method |
14 |
Iron |
mg/L |
Colorimetric Method |